package Demo01;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: 28463
 * Date: 2022—05—28
 * Time: 19:22
 */
public class SystemUtil {
/*    public static boolean isAdmin(String userId){
        return userId.toLowerCase()=="admin";
    }*/
    public static void main(String[] args){
/*        System.out.println(isAdmin("Admin"));*/
        String s1="abc"+"def";//1
        String s2=new String(s1);//2
        if(s1.equals(s2))//3
            System.out.println(".equals succeeded");//4
        if(s1==s2)//5
            System.out.println("==succeeded");//6


    }
}
